Brightlady Navani Kholin was the patron of Falilar's studies into engineering and fabrials.[1] He was present at Navani's test of the floating parapet that had been made with the use of reverser fabrials. He observed a wobble in the parapet's ascent and was concerned by the fact that its motion was not smoother.

Whilst in Urithiru Navani sketches some new inventions and one of her scribes suggests showing them to Falilar for him to verify the feasibility of such engineering.[2]